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Finding the Third Proportional to 18,685,433 and 40,164,394

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Solution

The third proportional to 18,685,433 and 40,164,394 is: 86,333,484.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,685,433 : 40,164,394 = 40,164,394 : x
  2. Step 2: Convert to fraction form
    18,685,433/40,164,394 = 40,164,394/x
  3. Step 3: Cross multiply
    18,685,433x = 40,164,394 × 40,164,394
  4. Step 4: Simplify right side
    18,685,433x = 1,613,178,545,387,236
  5. Step 5: Solve for x
    x = 1,613,178,545,387,236/18,685,433
  6. Step 6: Final answer
    x = 86,333,484.77

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.